/*CHEN 2021.8.9*/
/*清除*/
*{
	margin: 0;
	padding: 0;
}
a{
	text-decoration: none;
}
.clearfix:after{
	content:'';
	display: block;
	clear: both;
}
.banner img{
	width: 100%;
	height: 220px;
}
/*九宫格*/
.lattice{
	width: 100%;
}
.lattice img{
	width:40px;
}
/*动态创建的节点*/
.item{
	float: left;
	text-align: center;
	width: 33%;
	height: 80px;
	padding: 30px 0;
	border-bottom: 1px solid #ddd;
	border-right: 1px solid #ddd;
}
.item:nth-child(3n){
	border-right: none;
}
/*去边框*/
.item:nth-child(7),.item:nth-child(8),.item:nth-child(9){
	border-bottom: none;
}
.item span{
	display: block;
}
/*底部的导航*/
.bottom_nav{
	position: fixed;
	bottom: 0;
	width: 100%;
	border-top: 1px solid #ddd;
}
.bottom_nav div:nth-child(2){
	background: url(../images/message.png) no-repeat center 8px;
}
.bottom_nav div:nth-child(3){
	background: url(../images/profile.png) no-repeat center 8px;
}
.bottom_nav div{
	float: left;
	width:33%;
	padding-top: 64px;
	text-align: center;
    background-image: url(../images/change0.png);
	background-repeat: no-repeat;
	background-position:  center 8px;
	background-size: 60px;
}
